> > > Aim is 20 nodes (x4 cores) with 1TB disk each, on gigabit switch > - we are interested in AFR + unify for having 10TB x2 replications > - maybe NUFA > - we have tons of small files (10kB) which are our read bottleneck > - we want performance (currently we easyly exhaust 4 NFS servers) > - our users won't do concurrent write to the same file, except append > to logfile (we don't care of order as far as everything is logged) > > 1/ which version should we use? 1.3.9.tgz or some more recent from tla ? > 1.3.9 has some minor problems (like excessive logging in posix_setdents etc), we are about to make 1.3.10 after a week or two with afr write order fix. But I suggest latest tla of 2.5 branch as the best bet. (as there is only bug fixes happening on that branch). > > 2/ i guess we should use all the performance modules > 'io-cache' is useful. as you told all are small files, 'read-ahead' is not so useful. > > 3/ docs seems to say we should do (unify over NUFA over AFR) ? > or is it better to keep it simple and do only (unify over AFR) ? NUFA is used when each server has a client part too. > > > 4/ i'm a bit confused about namespaces, especially if we use > unify + NUFA + AFR. I probably missed a link explaining ns > and how avoid single point of failure. http://gluster.org/docs/index.php/Understanding_Unify_Translator#Configuration_needed_to_have_redundant_namespace_bricks > > > Btw, http://www.gluster.org/docs/index.php/GlusterFS_Volume_Specification > should be better advertised in documentation, as it is so important. > I'll write my step-by-step-glusterfs-howto-for-newbies and send it if > we succeed. > Cool! that would be a great help. > > Thanks in advance for answers, and for your great job. > Best Regards. > Alain Baeckeroot > > > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxx > http://lists.nongnu.org/mailman/listinfo/gluster-devel > -- Amar Tumballi Gluster/GlusterFS Hacker [bulde on #gluster/irc.gnu.org] http://www.zresearch.com - Commoditizing Super Storage!
